How Queen Guitarist Brian May Finished His Doctorate 33 Years Late, Then NASA Called Him – Ultimate Guitar

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Space datacenters proposed by SpaceX, Jeff Bezos’s Blue Origin and others would release staggering levels of pollution that would probably alter the Earth’s atmosphere and be “catastrophic” for the planet, space industry experts and environmental groups warn in a new petition demanding a review of their impacts. Tech companies have collectively proposed millions of “orbital…

There’s a bit of a historical mystery surrounding the star Theta Eridani. Ptolemy in the 2nd century AD and al-Sufi in 964 AD both recorded Theta Eridani as one of the thirteen brightest stars in the sky. Hipparchus may have said the same. But there’s a problem. For it to be one of the thirteen…

When China tightened export licences on seven rare-earth elements in April 2025, Western governments responded in the same way as they have to every other critical-minerals shock of the past five years. The European Union accelerated the issuing of extraction permits under the Critical Raw Materials Act. The United States expanded subsidies for domestic refining…

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I poured a tablespoon of isopropyl alcohol into a plate and placed an aluminium foil with an inch square hole cut into it. When I ignited the liquid at first it burns consistently and then a plume rose from the hole with a period for about two seconds. What causes these periodic plumes from a…